Dryer made noises like metal on metal grinding

Unplugged the dryer then popped the top off and tilted it back, exposing the drum. Then using a flat bladed screw driver, removed the two sheet metal screws holding the front panel on. Once the front panel was removed, I pulled the drum off, exposing the motor and worn pulley. I removed the pulley arm, then removed the pulley. The bearings were totally gone, so I replaced it with a new pulley, replaced the belt and the front drum glides, since they were obviously worn. While it was apart, I cleaned out the interior with a shop vac, which greatly improved the efficiency of the dryer.

Light noise

Its good to clean all the lint out the the dryer and vents on a yearly bases as to many years of lint build up can catch on fire and make a mess . Replacing the glides was easy . Make sure you clean all the old glue , so the pads stay in place as there need to compensate for minor frame to drum differences .